CN101369697B - Electric connector - Google Patents

Abstract

This invention discloses an electric connector for connecting flexible printed circuit board, including an insulated main body, a terminal and a voltage transferring plate. The terminal includes a pivot arm provided with a first convex part and a second convex part located at the external of the first convex part. The inner side of the first convex part is provided with a first recess. A second recess is formed between the first convex part and a second convex part. The voltage transferring plate includes a cam part cooperated with the pivot arm in pivot. The cam part includes a support part cooperated with the first recess in pivot and a reinforcing part extended from the support part.

Description

Electric connector

[technical field]

The present invention relates to a kind of electric connector, relate in particular to a kind of electric connector that is used to connect flexible printed circuit board.

[background technology]

The flexible printed circuit board electric connector is widely used in the various electronic installations, United States Patent (USP) announces the 6th, 099, a kind of flexible printed circuit board electric connector is disclosed for No. 346, this electric connector comprises insulating body, be inserted in the plurality of terminals in the insulating body and be assembled in commentaries on classics pressing plate on the insulating body, described commentaries on classics pressing plate is provided with the mating terminals rotation and in order to compress the cam part of flexible printed circuit board, this cam part may rupture because of undercapacity.

Japanese laid-open patent discloses a kind of flexible printed circuit board electric connector No. 3513751, can be with reference to this patent Fig. 1, when this commentaries on classics pressing plate is positioned at open mode and when holding flexible printed circuit board and inserting, flexible printed circuit board is run into cam part and the insertion that makes the stressed rotation of cam part and then cause flexible printed circuit board difficulty easily.

Therefore, be necessary to design a kind of electric connector that overcomes above-mentioned defective.

[summary of the invention]

Technical problem to be solved by this invention is: provide a kind of can increasing to change pressing plate intensity and the convenient electric connector that inserts flexible printed circuit board.

For achieving the above object, the present invention adopts following technical scheme: a kind of electric connector, it comprise insulating body, with insulating body mutually fixing terminal and change pressing plate, described terminal comprises pivotal arm, described pivotal arm is provided with first protuberance and is positioned at second protuberance in first protuberance outside, the first protuberance inboard is provided with first groove, form second groove between first protuberance and second protuberance, described commentaries on classics pressing plate comprises the cam part that pivots mutually and cooperate with pivotal arm, and described cam part comprises and first groove pivot support portion that cooperates and the rib of support portion extension.

Compared with prior art, the present invention has following beneficial effect: the cam part that electric connector of the present invention changes pressing plate has rib, can increase the intensity of cam part, the pivotal arm of terminal is provided with second protuberance that is positioned at first protuberance outside, so when holding the flexible print circuit insertion when changeing pressing plate to open, second protuberance can prevent that flexible print circuit and the cam part of changeing pressing plate from colliding, thereby avoided changeing the insertion unintentional rotation because of flexible print circuit of pressing plate, thereby flexible printed circuit board can insert easily.

[description of drawings]

Fig. 1 is the three-dimensional combination figure of electric connector of the present invention.

Fig. 2 is the three-dimensional exploded view of electric connector of the present invention.

Fig. 3 is the cutaway view along A-A line shown in Figure 1, and its transfer pressing plate is in closure state.

Fig. 4 is and the similar cutaway view of Fig. 3 that its transfer pressing plate is in open mode.

[embodiment]

See also Figure 1 and Figure 2, electric connector of the present invention comprise insulating body 1, assembling be immobilizated in plurality of terminals 2 on the insulating body 1, can with respect to the commentaries on classics pressing plate 3 of insulating body 1 rotation and a pair of be installed on insulating body 1 two ends grab plate 4.

See also Fig. 2 and in conjunction with Fig. 3 and shown in Figure 4, insulating body 1 comprises upper wall 11, lower wall 12 and both ends 13,12 of upper wall 11 and lower walls form a receiving space 10, this receiving space 10 can hold flexible printed circuit board and insert, be respectively equipped with the terminal containing slot 14 that communicates with receiving space on upper wall 11 and the lower wall 12, end 13 is provided with slot 130 and inserts fixing for grabbing plate 4.

Terminal 2 inserts insulating body 1 and is placed in the corresponding terminal containing slot 14 from the rear end, it comprises that base portion 20, the pivotal arm 21 that extends in the same way from base portion 20 reach the weld parts 23 that extend from base portion 20 downwards with contact arm 22.The front end of contact arm 22 is provided with the contact site 220 that can electrically contact with flexible printed circuit board (not shown).Pivotal arm 21 leading sections are provided with pivot part and protection portion; described pivot part comprises first groove 211 and first protuberance 212; described protection portion promptly is positioned at second protuberance 213 in first protuberance, 212 outsides; the free end and second protuberance 213 that second protuberance 213 is positioned at pivotal arm 21 have guiding face to make things convenient for the insertion of flexible PCB; the minimum point that formation second groove 214, the second protuberances 213 protrude out downwards between second protuberance 213 and first protuberance 212 is lower than the minimum point that first protuberance 212 protrudes out downwards.

See also Fig. 2, Fig. 3 and shown in Figure 4, change the cam part that pressing plate 3 comprises operating portion 31 and is positioned at operating portion 31 opposite sides, this cam part comprises and terminal pivot part the pivot support portion 321 cooperates and the rib 322 of self-supporting portion 321 extensions, form recess 34 (ginseng Fig. 3) between support portion 321 and the rib 322, commentaries on classics pressing plate 3 is provided with and can holds the fluting 30 that terminal pivotal arm 21 heads pass, cam part is arranged in this fluting 30 and can cooperates with pivotal arm 21 pivots, wherein support portion 321 has arc surface, this circular arc is in order to cooperate with first groove 211 of pivotal arm 21, and it is more steady to change pressing plate 3 rotations like this.This commentaries on classics pressing plate 3 also comprises the end axle 33 that is positioned at two ends, and when grabbing after plate 4 is inserted in the end 13 of insulating body 1, end axle 33 is resisted against grabs on the plate 4.

Grab plate 4 and comprise that main part 41 and autonomous body 41 extends and can insert in extension 42 in the end 13, extension 42 supports the end axle 33 that changes pressing plate 3 and commentaries on classics pressing plate 3 is rotated between open mode and closure state, main part 41 lower ends form welding ends 43, and welding ends 43 is in order to weld and fixing insulating body 1 mutually with circuit board.

Be provided with rib 322 owing to change the cam part of pressing plate 3, so the intensity of cam part increases.See also Fig. 4; the figure illustrates commentaries on classics pressing plate 3 is positioned at open mode and can holds flexible printed circuit board insertion receiving space 10; at this moment; first protuberance 212 of pivotal arm 21 is placed in the recess 34 of cam part; rib 322 parts are contained in second groove 214; certainly in other embodiments; rib 322 also can not be provided with the part that enters in second groove 214; protection portion i.e. second protuberance 213 is positioned at the outside of cam part and second protuberance 213 and protrudes out downwards with the minimum point of cam part and flush; thereby when flexible printed circuit board inserts; second protuberance 213 protection cam part prevent that flexible printed circuit board from running into cam part, and cam part can be because of the insertion unintentional rotation of flexible printed circuit board like this.In other embodiments, second protuberance 213 protrudes out downwards and the minimum point that forms also can surpass the minimum point of cam part.

After flexible printed circuit board (not shown) inserts, change pressing plate 3 and can rotate and be in closure state (ginseng Fig. 3) around cam part, at this moment, but terminal 2 with the flexible printed circuit board electric connection transmission of electric signals.

The above, it only is better embodiment of the present invention, be not that the present invention is done any pro forma restriction, have in any described technical field and know the knowledgeable usually, if do not break away from the scope of technical characterictic that the present invention puies forward, utilize disclosed technology contents to make the local equivalent execution mode that changes or modify, and do not break away from technical spirit content of the present invention, all still belong to the scope of the technology of the present invention feature.

Claims (8)

1. electric connector, it comprise insulating body, with insulating body mutually fixing terminal and change pressing plate, described terminal comprises pivotal arm, described commentaries on classics pressing plate comprises the cam part that pivots mutually and cooperate with pivotal arm, it is characterized in that: described pivotal arm is provided with first protuberance and is positioned at second protuberance in first protuberance outside, the first protuberance inboard is provided with first groove, form second groove between first protuberance and second protuberance, described cam part comprises and first groove pivot support portion that cooperates and the rib of self-supporting portion extension.

2. electric connector as claimed in claim 1 is characterized in that: described second protuberance is positioned at the free end of pivotal arm and has guiding face.

3. electric connector as claimed in claim 1 is characterized in that: described first protuberance and second protuberance all protrude out downwards from pivotal arm, and the minimum point of second protuberance is lower than the minimum point of first protuberance.

4. electric connector as claimed in claim 1, it is characterized in that: wherein said commentaries on classics pressing plate can rotate between open position and make position, when changeing pressing plate and be shown in an open position, the minimum point of second protuberance is concordant with the minimum point of cam part or be lower than the minimum point of cam part.

5. electric connector as claimed in claim 1 is characterized in that: the part of the described support portion and first groove fit is an arc surface.

6. electric connector as claimed in claim 1 is characterized in that: form a recess between described support portion and the rib, when the commentaries on classics pressing plate was shown in an open position, first protuberance of terminal was placed in this recess.

7. as each described electric connector of claim 1 to 6, it is characterized in that: described terminal comprises base portion, contact arm and weld part, and described contact arm and pivotal arm extend in the same way from base portion.

8. as each described electric connector of claim 1 to 6, it is characterized in that: described electric connector comprises a pair of plate of grabbing that is assembled in the insulating body two ends respectively.

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